#include <iostream>
using namespace std;
void main()
{
int *pa=new int ();
int *pb=new int ();
char *pc=new char ();
cout<<"Enter first number:  ";
cin>>*pa;
cout<<"Enter second number:  ";
cin>>*pb;
cout<<"Choose option + - * /:  ";
cin>>*pc;
do
{
		if(*pc=='+')
		{
		cout<<*pa+(*pb)<<endl;
		break;
		}
		else
		if(*pc=='-')
		{
		cout<<*pa-(*pb)<<endl;
		break;
		}
		else
		if(*pc=='*')
		{
		cout<<*pa*(*pb)<<endl;
		break;
		}
		else
		if(*pc=='/')
		{
		cout<<*pa/(*pb)<<endl;
		break;
		}
		else
		{	cout<<"Choose option + - * /  ";
			cin>>*pc;
			continue;

		}
}while (*pc!='+'||*pc!='-'||*pc!='*'||*pc!='/');
}